#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main()
{
	int a = 0;
	int b = 0;
	int c = 0;
	int w = 0;
	double t = 0;
	scanf("%d%d%d", &a, &b, &c);
	w = b * b - 4 * a * c;
	printf("%d\n", w);
	t = 3.14* w * w + 2 * a - b * c;
	printf("%lf\n", t);
	return 0;
}